Definition of Boundary

1. Noun. The line or plane indicating the limit or extent of something.

2. Noun. A line determining the limits of an area.
Exact synonyms: Bound, Edge
Generic synonyms: Line
Specialized synonyms: Rim, Border, Margin, Perimeter, Fringe, Outer Boundary, Periphery, Brink, Threshold, Verge, Upper Bound, Lower Bound, Thalweg
Derivative terms: Bound, Bound, Bound, Edge

3. Noun. The greatest possible degree of something. "To the limit of his ability"
Exact synonyms: Bound, Limit
Generic synonyms: Extent
Specialized synonyms: Knife-edge, Absoluteness, Starkness, Utterness, Heat Barrier, Thermal Barrier, Level Best, Maximum, Utmost, Uttermost, Brink, Verge
Derivative terms: Limit, Limit, Limit

Definition of Boundary

1. n. That which indicates or fixes a limit or extent, or marks a bound, as of a territory; a bounding or separating line; a real or imaginary limit.

Definition of Boundary

1. Noun. The dividing line or location between two areas. ¹

2. Noun. (cricket) An edge or line marking an edge of the playing field. ¹

3. Noun. (cricket) An event whereby the ball is struck and either touches or passes over a boundary (with or without bouncing), usually resulting in an award of 4 (a four) or 6 (a six) runs respectively for the batting team. ¹

4. Noun. (topology) (context: of a set) the set of points in the closure of a set S, not belonging to the interior of that set. ¹

¹ Source:

Definition of Boundary

1. a dividing line [n -ARIES]

Boundary Pictures

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Lexicographical Neighbors of Boundary

bound morphemes
bound off
bound on equip
bound on pickup
bound state
bound states
bound to
bound up
bound variable
bound variables
bound water
boundary (current term)
boundary condition
boundary layer
boundary line
boundary rider
boundary riders
boundary umpire
boundary umpires
bounded function
bounded interval

Literary usage of Boundary

Below you will find example usage of this term as found in modern and/or classical literature:

1. International Law: A Treatise by Lassa Oppenheim (1905)
"boundary ยง199- Natural boundaries consisting of water must aters' be specially discussed on account of the different kinds of boundary waters. ..."

2. Projective Geometry by Oswald Veblen, John Wesley Young (1918)
"The boundaries of Rj and R2 contain a and all boundary points of cr. Each boundary point of R is a boundary point of Rt or of R2, and each boundary point of ..."

3. The American Journal of International Law by American Society of International Law (1908)
"The boundary is appropriately divided by the treaty into eight different sections, each one of which is dealt with in a separate article containing a ..."

4. United States Supreme Court Reports by Lawyers Co-operative Publishing Company, United States Supreme Court (1904)
"ORIGINAL SUIT in equity on bill and cross bill to settle a disputed boundary line between the states of Missouri and Nebraska. ..."

5. Supreme Court Reporter by Robert Desty, United States Supreme Court, West Publishing Company (1909)
"held that, in the absence of avulsion, the boundary was the varying center of the ... But there ia no fixed rule making that the boundary between states ..."

6. Proceedings of the American Philosophical Society Held at Philadelphia for by American Philosophical Society (1908)
"The boundary between the British and Russian possessions in North ... The total length of the boundary referred to by Mr. Sumner is twelve hundred miles. ..."

7. Proceedings by Royal Geographical Society (Great Britain), Norton Shaw, Francis Galton, William Spottiswoode, Clements Robert Markham, Henry Walter Bates, John Scott Keltie (1885)
"Eastern boundary of the water-parting of the Congo Basin according to the same Acts, ... boundary of the territory of the International Congo Association, ..."

8. Proceedings of the Royal Society of London by Royal Society (Great Britain) (1864)
"is found to depend not only on the surface, but also on its linear boundary extension. Thus the linear boundary of 100 square inches of surface under a ..."

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